LOUDOUN MEDICAL GROUP, PC
NPI 1588376321
Surgery - Vascular Surgery in Reston, VA

NPI Status: Active since December 22, 2022

Contact Information

12005 SUNRISE VALLEY DRIVE, SUITE 120
RESTON, VA
ZIP 20191
Phone: (703) 737-6010

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NPPES record last updated: December 22, 2022. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Organization
  • Surgery
  • Vascular Surgery

About LOUDOUN MEDICAL GROUP, PC

This page provides the complete NPI Profile along with additional information for Loudoun Medical Group, Pc, a provider established in Reston, Virginia operating as a Surgery, focusing in vascular surgery . The healthcare provider is registered in the NPI registry with number 1588376321 assigned on December 2022. The practitioner's primary taxonomy code is 2086S0129X. The provider is registered as an organization and their NPI record was last updated 4 years ago. Loudoun Medical Group, Pc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mary Beth Tamasy (Ceo)

NPI
1588376321
Provider Name
LOUDOUN MEDICAL GROUP, PC
Entity Type
Organization
Location Address
12005 SUNRISE VALLEY DRIVE, SUITE 120 RESTON, VA 20191
Location Phone
(703) 737-6010
Mailing Address
224-D CORNWALL STREET, NW, SUITE 403 LEESBURG, VA 20176
Mailing Phone
(703) 737-6010
Mailing Fax
(703) 443-8643
Is Sole Proprietor?
No
Is Organization Subpart?
Yes
Enumeration Date
12-22-2022
Last Update Date
12-22-2022
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Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Surgery Vascular Surgery

Taxonomy Code
2086S0129X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MARY BETH TAMASY

Authorized Official Title
CEO
Authorized Official Phone
(703) 737-6010

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NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1588376321, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
8
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
2
Doubled → 4
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 8 → 16 → 7 3 → 6 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 1 + 6 + 8 + 6 + 7 + 1 + 2 + 3 + 4 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1588376321.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Surgery (Vascular Surgery)
12005 SUNRISE VALLEY DRIVE, SUITE 120
RESTON, VA 20191
Surgery (Vascular Surgery)
12005 SUNRISE VALLEY DRIVE, SUITE 120
RESTON, VA 20191
Surgery
12005 SUNRISE VALLEY DRIVE, SUITE 120
RESTON, VA 20191

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1588376321, enumerated as an "organization" on December 22, 2022.

The provider is located at 12005 SUNRISE VALLEY DRIVE, SUITE 120 RESTON, VA 20191 and the phone number is (703) 737-6010.

Surgery with taxonomy code 2086S0129X and a focus in Vascular Surgery.